Compositions – Electrolytes for electrical devices
Patent
1990-03-20
1993-08-31
Medley, Margaret
Compositions
Electrolytes for electrical devices
252 475, 252 39, 252 41, 560130, 560206, C10M12970, C10M12995
Patent
active
052406253
ABSTRACT:
A lubricating oil additive suitable as an extreme pressure/anti-wear additive comprises the product obtainable by reacting at elevated temperature a mixture comprising (i) sulphur, (ii) at least one C.sub.10 to C.sub.100 unsaturated carboxylic acid, and (iii) at least one hydrocarbyl-substituted phenol, the amount of (iii) in the mixture being 15 to 65% w/w based on the combined weight of (i) (ii) and (iii). The reaction mixture can further comprise an olefin and/or, a mercaptan and/or a lubricating oil as a diluent. The additive is also useful as an anti-oxidant. Additive concentrates and lubricating oil compositions comprise a lubricating oil and the additives of the present invention.
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BP Chemicals (Additives) Limited
Medley Margaret
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